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yapf/track_dir.hpp
author bjarni
Thu, 05 Oct 2006 12:59:28 +0000
changeset 4739 e626ef1b522e
parent 3900 2c84ed52709d
child 5081 fe3a6da19d9f
permissions -rw-r--r--
(svn r6651) -Coding feature: added the windowevent WE_INVALIDATE_DATA
This gives the ability to invalidate some window data and recalculate as needed instead of doing it for each WE_PAINT

This event is called right away when using InvalidateWindowData(), so it may be a good idea to set a bool or similar in the window
or similar and then act on that bool in WE_PAINT instead of doing a lot of stuff in WE_INVALIDATE_DATA as it might be called more than once before WE_PAINT is called

InvalidateWindowData() will not automatically repaint the window, so if you want to repaint it as well, you need to mark it dirty as well.

Made the depot windows use WE_INVALIDATE_DATA to set when to generate the engine and wagon lists instead of at each redraw
It makes no sense to regenerate the list when say using the scrollbar if we know that no vehicle have entered or left the list

NOTE: currently there is a piece of code to generate the list when it's not needed and compare it to the stored list and assert if they mismatch
This check is somewhat slow and kills the whole idea of WE_INVALIDATE_DATA, so it's a short lived one to verify that InvalidateWindowData() is used everywhere where it's needed 
/* $Id$ */

#ifndef  TRACK_DIR_HPP
#define  TRACK_DIR_HPP

EXTERN_C_BEGIN
#include "../tile.h"
#include "../openttd.h"
#include "../map.h"
#include "../rail.h"
EXTERN_C_END

/** Helpers to allow to work with enum as with type safe bit set in C++ */
#define DECLARE_ENUM_AS_BIT_MASK(mask_t) \
	FORCEINLINE mask_t operator | (mask_t m1, mask_t m2) {return (mask_t)((int)m1 | m2);} \
	FORCEINLINE mask_t operator & (mask_t m1, mask_t m2) {return (mask_t)((int)m1 & m2);} \
	FORCEINLINE mask_t operator ^ (mask_t m1, mask_t m2) {return (mask_t)((int)m1 ^ m2);} \
	FORCEINLINE mask_t& operator |= (mask_t& m1, mask_t m2) {m1 = m1 | m2; return m1;} \
	FORCEINLINE mask_t& operator &= (mask_t& m1, mask_t m2) {m1 = m1 & m2; return m1;} \
	FORCEINLINE mask_t& operator ^= (mask_t& m1, mask_t m2) {m1 = m1 ^ m2; return m1;} \
	FORCEINLINE mask_t operator ~(mask_t m) {return (mask_t)(~(int)m);}

/** probably redundant enum combining operators (as we have conversion functions) */
#define DECLARE_ENUM_AS_BIT_INDEX(idx_t, mask_t) \
	FORCEINLINE mask_t operator << (int m, idx_t i) {return (mask_t)(m << (int)i);} \
	FORCEINLINE mask_t operator << (mask_t m, int i) {return (mask_t)(((int)m) << i);} \
	FORCEINLINE mask_t operator >> (mask_t m, int i) {return (mask_t)(((int)m) >> i);}

DECLARE_ENUM_AS_BIT_MASK(TrackBits);
DECLARE_ENUM_AS_BIT_INDEX(Track, TrackBits);

DECLARE_ENUM_AS_BIT_MASK(TrackdirBits);
DECLARE_ENUM_AS_BIT_INDEX(Trackdir, TrackdirBits);

#endif /* TRACK_DIR_HPP */
openttd-mini